MICROWAVE OVEN - shema.ru · PDF fileAlthough the microwave oven is completely safe during ... Primary and secondary interlock switches, interlock monitor ... blade fan'3', spring

MICROWAVE OVENCE124CF

SERVICE Manual

MICROWAVE OVEN CONTENTS

1. Precaution

2. Specifications

3. Operating Instructions

4. Disassembly and Reassembly

5. Alignment and Adjustments

6. Troubleshooting

7. Exploded Views and Parts List

8. PCB Diagrams

9. Schematic Diagrams

UHR

LEISTUNGGRILL

ZEIT/GEWICHT

AUFTAUEN

GAR-AUTOMATIK

PLUS

HEISSLUFT MIKROWELLE

MW+HEISSL

MW+GRILL

GRILL+HEISSL

LÖSCHEN START

CE124CF

SCHNELLGERICHTE1.GETRÄNKE

2.FOLIENKARTOFFEL

3.PIZZA

4.POMMES FRITES

5.HAMBURGER/FISCHSTÄBCHEN

6.REIS/NUDELN

7.POPCORN

AUFWARMEN8.FERTIGGERICHTE

9.QUICHE/AUFLAUF

10.EINTOPF

11.SUPPE/SAUCE

12.REIS/NUDELN

GAR.AUTOMATIK13.RIND

14.SCHWEIN

15.GEFLÜGEL

16.GEFLÜGELSTÜCKE

17.FISCH

18.GEMÜSE(FRISCH)

19.GEMÜSE (GEFROREN)

MINUS

1. Precaution

1-1 Safety precautions ( )

Samsung Electronics 1-1

Follow these special safety precautions. Although the microwave oven is completely safe during ordinaryuse, repair work can be extremely hazardous due to possible exposure to microwave radiation, as well aspotentially lethal high voltages and currents.

1. All repairs should be done in accordancewith the procedures described in thismanual. This product complies withFederal Performance Standard 21 CFR Subchapter J (DHHS).

2. Microwave emission check should beperformed to prior to servicing if the oven isoperative.

3. If the oven operates with the door open :Instruct the user not to operate the oven andcontact the manufacturer and the center fordevices and radiological health immediatly.

4. Notify the Central Service Center if themicrowave leakage exceeds 5 mW/cm2

5. Check all grounds.

6. Do not power the MWO from a "2-prong"AC cord. Be sure that all of the built-inprotective devices are replaced. Restore anymissing protective shields.

7. When reinstalling the chassis and itsassemblies, be sure to restore all protectivedevices, including: nonmetallic controlknobs and compartment covers.

8. Make sure that there are no cabinet openingsthrough which people--particularlychildren--might insert objects and contactdangerous voltages. Examples: Lamp hole,ventilation slots.

9. Inform the manufacturer of any oven foundto have emmission in excess of 5 mW/cm2,Make repairs to bring the unit intocompliance at no cost to owner and try todetermine cause.Instruct owner not to use oven until it hasbeen brought into compliance.

CENTRAL SERVICE CENTER

10. Service technicians should remove theirwatches while repairing an MWO.

11. To avoid any possible radiation hazard,replace parts in accordance with the wiringdiagram. Also, use only the exactreplacements for the following parts:Primary and secondary interlock switches,interlock monitor switch.

12. If the fuse is blown by the Interlock MonitorSwitch: Replace all of the following at thesame time: Primary, door sensing switchand power relay, as well as the InterlockMonitor Switch. The correct adjustment ofthese switches is described elsewhere in thismanual. Make sure that the fuse has thecorrect rating for the particular model beingrepaired.

13. Design Alteration Warning:Use exact replacement parts only, i.e.,only those that are specified in thedrawings and parts lists of this manual.This is especially important for theInterlock switches, described above.Never alter or add to the mechanical orelectrical design of the MWO. Any designchanges or additions will void themanufacturer's warranty.10.Always unplugthe unit's AC power cord from the ACpower source before attempting toremove or reinstall any component orassembly.

14. Never defeat any of the B+ voltageinterlocks. Do not apply AC power to theunit (or any of its assemblies) unless allsolid-state heat sinks are correctly installed.

15. Some semiconductor ("solid state") devicesare easily damaged by static electricity. Suchcomponents are called ElectrostaticallySensitive Devices (ESDs). Examples includeintegrated circuits and field-effecttransistors.

Immediately before handling anysemiconductor components or assemblies,drain the electrostatic charge from yourbody by touching a known earth ground.

16. Always connect a test instrument's groundlead to the instrument chassis ground beforeconnecting the positive lead; always removethe instrument's ground lead last.

17. When checking the continuity of theswitches or transformer, always make surethat the power is OFF, and one of the leadwires is disconnected.

18. Components that are critical for safety areindicated in the circuit diagram byshading, or .

19. Use replacement components that have thesame ratings, especially for flame resistanceand dielectric strength specifications. Areplacement part that does not have thesame safety characteristics as the originalmight create shock, fire or other hazards.

1. High Voltage WarningDo not attempt to measureany of the highvoltages--this includes the filament voltageof the magnetron. High voltage is presentduring any cook cycle.

Before touching any components or wiring,always unplug the oven and discharge thehigh voltage capacitor (See Figure 1-1)

2. The high-voltage capacitor remains chargedabout 30 seconds after disconnection. Shortthe negative terminal of the high-voltagecapacitor to the oven chassis. (Use ascrewdriver.)

3. High voltage is maintained within specifiedlimits by close-tolerance, safety-relatedcomponents and adjustments. If the highvoltage exceeds the specified limits, checkeach of the special components.

1-2

Pretaution

Samsung Electronics

1-2 Special Servicing Precautions (Continued)

1-3 Special High Voltage Precautions

=> : Touch chassis side first then short to the high voltagecapacitor terminal by using a screwdriver or jumperwire.

PRECAUTION

There exists HIGH VOLTAGE ELECTRICITY with highcurrent capabilities in the circuits of the HIGH VOLTAGETRANSFORMER secondary and filament terminals. It isextremely dangerous to work on or near these circuitswith the oven energized.DO NOT measure the voltage in the high voltage circuitincluding filament voltage of magnetron.

PRECAUTION

Never touch any circuit wiring with your hand nor with aninsulated tool during operation.

PRECAUTIONServicemen should remove their watches wheneverworking close to or replacing the magnetron.

2. Specifications

2-1 Table of Specifications


MODEL CE124CFITEM

TIMER 99 MINUTES

POWER SOURCE 230V 50Hz, AC

POWER CONSUMPTION MAX : 3,000W

MICROWAVE : 1,600W

GRILL : 1,300W

CONVECTION : 1,400W

OUTPUT POWER 90W/900W(10 LEVEL POWER) (IEC-705 TEST PROCEDURE)

OPERATING FREQUENCY 2,450MHz

MAGNETRON OM75P(10)

COOLING METHOD COOLING FAN MOTOR

OUTSIDE DIMENSIONS 558(W) x 381(H) x 496(D)

3-1 Samsung Electronics

CONVECTION MICROWAVE

P/LEVELGRILL

DEFROSTMW+CONV.

CLOCK

MW+GRILL

GRILL+CONV. AUTO/DISH

MORE

LESS

INSTANT COOK1.DRINKS

2.JACKET POTATO

3.PIZZA

4.OVEN CHIPS

5.BURGERS/FISH FINGERS

6.RICE/PASTA

7.POPCORN

AUTO REHEAT8.PLATED MEAL

9.PIE/QUICHE

10.CASSEROLE

11.SOUP/SAUCE

12.RICE/PASTA(REHEAT)

AUTO COOK13.ROAST BEEF

14.ROAST PORK

15.ROAST CHICKEN

16.CHICKEN PIECE

17.FISH

18.FRESH VEGETABLE

19.FROZEN VEGETABLE

TIMER/WEIGHT

STOP/CANCEL START

CE124CF

WINDOW DISPLAY AND INDICATOR LIGHTS

* Funtion Indicator Lights indicate which cooking funtion is being set or used.* Digital Display shows time of day or time left to cook.* Power Indicator Light Indicates which power is being set or used.

FUNCTION SELECTOR BUTTONS

* Clock set* Microwave, Power Level select* Defrost, Auto cook and Dish select* More, Less(Min Plus, Min Minus)* Convection, grill, Combination cook* Timer/Weight set* Stop/Cancel, Start

3. Operating Instructions

3-1 Control Panel

3-2 Features & Accessories

ROLLER RING

CONTROL PANEL

HEATER GRILL

BARBECUE BAR HOLDER

OVEN LAMP

GLASS TRAY

OVEN DOOR

THERMIISTOR SENSOR

WINDOW DISPLAY

OPEN DOOR

UHR

LEISTUNGGRILL

ZEIT/GEWICHT

AUFTAUEN

GAR-AUTOMATIK

PLUS


MW+HEISSL

MW+GRILL

GRILL+HEISSL

LÖSCHEN START

CE124CF


2.FOLIENKARTOFFEL

3.PIZZA

4.POMMES FRITES


6.REIS/NUDELN

7.POPCORN


9.QUICHE/AUFLAUF

10.EINTOPF

11.SUPPE/SAUCE

12.REIS/NUDELN


14.SCHWEIN

15.GEFLÜGEL

16.GEFLÜGELSTÜCKE

17.FISCH

18.GEMÜSE(FRISCH)


MINUS

COUPLER ROATING BASE TURNTABLE TRAY

METAL RACKS

BARBECUEBAR

HOLDER CRUSTY PLATE MULTY SPIT

4 Magnetron flange nuts at topPin plate

screws (1) of damperscrews

(2) ofMagnetronthermostat

Choke Coil

4. Disassembly and Reassembly

4-1 Replacement of Fan Motor and HVCapacitor

4-2 Replacement of Damper, Magnetron

4-3 Replacement of Lamp


1. Remove out panel.2. Disconnect all connectors and terminals.3. Remove a screw 1) securing the fan motor

bracket.4. Remove two screws 2) at back plate.5. Remove a screw 3) securing HVC bracket for

removal of HVC.

1. After removing out panel and magnetronsupporter, disconnect all the terminals andconnectors from magnetron and damper assembly.

2. Remove four screws (1) securing damper Ass'y.3. Remove two screws (2) securing magnetron

thermostat.4. Remove four magnetron flange nuts at top.

=> : 1) When removing the magnetron, make sure thatits antenna does not hit any adjacent parts, or itmay be damaged.

2) when replacing the magnetron, be sure toremount the magnetron gasket in the correctposition and make sure the gasket is in goodcondition.

3) Never install magnetron without metalic gasketplate, which should be packed with eachmagnetron to prevent microwave leakage.

4) Check microwave leakage after repair work iscarried out on magnetron.

1) Remove out panel.2) Remove two screws securing lamp holder.

(Top View) screw 1)

(Rear View)

screw 2)screw 3) of HVC bracket

screws of lamp

Thermistor Probe

Thermal Cutout Switch


Disassembly and Reassembly

4-4 Replacement of Door Assembly

4-7 Replacement of Casing Ass'y and Convection Heater

4-6 Replacement of Fuse

Remove hex bolts securing the upper hinge andlower hinge. Then remove the door Ass'y.

• After replacement of the defective component partsof the door, reassemble it and follow the instructionsbelow for proper installation and adjustment so asto prevent an excessive microwave leakage.

1. When mounting the door to the oven, be sure toadjust the door parallel to the bottom line of theoven face plate by moving the upper hinge andlower hinge in the direction necessary for properalignment.

2. Adjust so that the door has no play between theinner door surface and oven front surface. If thedoor assembly is not mounted properly,microwave may leak from the clearance betweenthe door and oven.

3. Perform the microwave leakage test.

4-5 Replacement of H.V.Transformer1. Discharge the high voltage capacitor.2. Disconnect all the leads from the high voltage

transformer.3. Remove the mounting bolts on the high voltage

transformer.4. When replacing, connect the leads correctly and

firmly.

Disconnect the oven from the power source andremove the 15A fuse in the fuse holder in noisefilter Ass'y.

1. Remove out panel and back panel.2. Disconnect all connectors and terminals.3. Remove air duct and support-back.4. Remove screws 1) securing convection heater Ass'y.5. Remove nut'2', blade fan'3', spring washer'4' and bushing'5'.6. Remove convection assembly '11', '12' and cooling fan'10'.7. Remove four screws '6'.8. Remove heater cover '7' '9'. Then heater adiabatic '8' will be disassembled.

Flange Bolts of upper hinge

Bolts & a screw of lower hinge

screws 1) of convection heater

2

4

3

5 78

9

1011

12

6



4-9 Replacement of Control Circuit Board

4-8 Replacement of Drive Motor

• Be sure to ground any static electric charge in you body and never touch the touch control circuitry.

1. Remove 3 screws securing control panel Ass'y to oven front.2. Remove screws holding control panel bracket '7' to control panel '1'.3. Disconnect film connector from PCBoard assembly '9'.4. Remove 3 screws securing PCB Ass'y.5. Pull out membrane'4', window display'5' and door button'2'.

1. Take out the glass tray, guide roller and coupler from cavity.2. Turn the oven upside down to replace the drive motor.3. Cut out the drive motor cover with nipper and remove it from the base plate.4. Disconnect all the lead wires from the drive motor.5. Remove screws 1) securing the drive motor to the cavity.6. Take out the drive motor.7. When replacing the drive motor, be sure to remount it in the correct position.

1.DRINKS2.JACKET POTATO

3.PIZZA4.OVEN CHIPS5.BURGERS/FISH FINGERS

6.RICE/PASTA7.POPCORNAUTO REHEAT8.PLATED MEAL9.PIE/QUICHE10.CASSEROLE11.SOUP/SAUCE

12.RICEPASTA(REHEAT)

AUTO COOK13.ROAST BEEF14.ROAST PORK15.ROAST CHICKEN

16.CHICKEN PIECE

17.FISH18.FRESH VEGETABLE

19.FROZEN VEGETABLE

INSTANT COOK

CLOCK

DEFROST

P/LEVEL

AUTOD/DISH

MORE/LESS

TIMER/WEIGHT

CANCEL

START

MICROWAVE

GRILL

CONVECTION

MW+CONV.

MW+GRILL

GRILL+CONV.

2 1

3

6

7

9

8

Cut eight points of drive motor cover.

After replacing the drive motor, insertboss to this tab and fit with twoscrews 2).

screws 1)

Lead wires

screws 2)

4-6 Replacement of Control Circuit Board

4-6-1 Removal of Control Box Assembly


1. Be sure to disclyarge any static electricity from your body, and avoid touching the "Touch control"clrcuitry.

2. Disconnect the connectors from the control circuit board.3. Remove screws securing the control circuit bord.4. Lift up the control circuit board from right side and remove the hooks holding the contol circuit board to

the box assembly.


Screws

Screws

Samsung Electronics

5. Alignment and Adjustments

5-1 High Voltage Transformer

5-2 Low Voltage Transformer

5-3 Magnetron

5-1

1. Remove connectors from the transformer terminalsand check continuity.

2. Normal resistance readings are as follows:

Secondary ..........................Approx. 66WFilament .............................Approx. 0WPrimary...............................Approx. 1.250W

(Room temperature = 20˚C)

Continuity checks can indicate only an openfilament or a shorted magnetron. To diagnose anopen filament or shorted magnetron :

1. Isolate the magnetron from the circuit bydisconnecting its leads.

2. A continuity check across the magnetron filamentterminals should indicate one ohm or less.

3. A continuity check between each filament terminaland magnetron case should read open.

1. The low voltage transformer is located on thecontrol circuit board.

2. Remove the low voltage transformer from thePCB Ass'y and check continuity.

3. Normal resistor reading is shown in the table.

PRECAUTION

1. High voltage is present at the high voltage terminals during any cook cycle.2. It is neither necessary nor advisable to attempt measurement of the high voltage.3. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the high voltage

capacitor.

L.V.T SPEC. : SLV-105ETerminals Resistance

1~2(Input) 290Ω3~4(Output) 4.0Ω5~6(Output) 1.0Ω

Cooling Fins

Gasket PlateMagnetron Antenna

Filament Terminals Secondary Terminal

PrimaryTerminals

Samsung Electronics

5-4 High Voltage Capacitor

5-5 High Voltage Diode

5-6 Main Relay and Power Control Relay

5-7 Adjustment of Primary Switch, Door Sensing Switch and Monitor Switch

5-2

1. Check continuity of the capacitor with the meter set at the highest resistance scale.2. Once the capacitor is charged, a normal capacitor shows continuity for a short time, and then indicates 9MΩ.3. A shorted capacitor will show continuous continuity.4. An open capacitor will show constant 9MΩ.5. Resistance between each terminal and chassis should read infinite.

1. Isolate the diode from the circuit by disconnecting its leads.2. With the ohm-meter set at the highest resistance scale, measure across the diode terminals. Reverse the

meter leads and read the resistance. A meter with 6V, 9V or higher voltage batteries should be used tocheck the front-to back resistance of the diode (otherwise an infinite resistance may be read in bothdirections). The resistance of a normal diode will be infinite in one direction and several hundred KΩ inthe other direction.

1. When mounting Primary switch and InterlockMonitor switch to Latch Body, consult the figure.

NOTE : No specific adjustment during installationof Primary switch and Monitor switch to the latchbody is necessary.

2. When mounting the Latch Body to the ovenassembly, adjust the Latch Body by moving it so thatthe oven door will not have any play in it. Check forplay in the door by pulling the door assembly. Makesure that the latch keys move smoothly afteradjustment is completed. Completely tighten thescrews holding the Latch Body to the oven assembly.

3. Reconnect to Monitor switch and check thecontinuity of the monitor circuit and all latchswitches again by following the components testprocedures.

4. Confirm that the gap between the switch housingand the switch actuator is no more than 0.5mm whendoor is closed.

1. The relays are located on the PCB Ass'y. Isolate them from the main circuit by disconnecting the leads. 2. Operate the microwave oven with a water load in the oven. Set the power level set to high.3. Check continuity between terminals of the relays after the start pad is pressed.

Precaution

For continued protection against radiation hazard, replace parts in accordance with the wiring diagram and be sure to use thecorrect part number for the following switches: Primary and door sensing switches, and the interlock monitor switch (replace alltogether). Then follow the adjustment procedures below. After repair and adjustment, be sure to check the continuity of allinterlock switches and the interlock monitor switch.

Alignment and Adjustments

Door Open Door Closed

Primary switch ∞ 0Monitor switch (COM-NC) 0 ∞Monitor switch (COM-NO) ∞ 0Door Sensing S/W ∞ 0

Interlock Monitor S/W

Lever Slider A

Primary Interlock S/W

Door Sensing S/W

Lever Slider B

(Door Close Condition) (Door Open Condition)


7. Normal temperature rise for this model is 9˚C to 11˚C at 'HIGH'.NOTE 1: Variations or errors in the test procedure will cause a variance in the temperature rise.Additional power test should be made if temperature rise is marginal.NOTE 2: Output power in watts is computed by multiplying the temperature rise (step 5) by a factor of 90times the of centigrade temperature.

4.187 x 1000 x ∆T+0.88xMcx(T2-T0)Output Power =

46.5

46.5: Heating Time (sec)4.187 : Coefficient for Water1000 : Water (cc)∆T : Temperature Rise (T2-T1)Mc : Cylindrical borosilicate glass weightTo : Room temperature.

5-8 Output Power of Magnetron


CAUTIONMICROWAVE RADIATION

PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE GENERATOR OR OTHER PARTSCONDUCTING MICROWAVE ENERGY.

The output power of the magnetron can be measured by performing a water temperature rise test.Equipment needed :* Two 1-liter cylindrical borosilicate glass vessel (Outside diameter 190 mm)* One glass thermometer with mercury columnNOTE: Check line voltage under load. Low voltage will lower the magnetron output. Make all temperatureand time tests with accurate equipment.1. Fill the one liter glass vessel with water.2. Stir water in glass vessel with thermometer, and record glass vessel's temperature ("T1", 10±1˚C).3. After moving the water into another glass vessel, place it in the center of the cooking tray. Set the oven to high

power and operate for 48seconds exactly. (1.5 seconds included as a holding time of magnetron oscillation:)4. When heating is finished, stir the water again with the thermometer and measure the temperature ("T2").5. Subtract T1 from T2. This will give you the water temperature rise. (∆T)6. The output power is obtained by the following formula;

The microwave heat distribution can be checked indirectly by measuring the water temperature rise atcertain positions in the oven:

1. Prepare five beakers made of 'Pyrex', having 100 milliliters capacity each.2. Measure exactly 100milliliters off water load with a measuring cylinder, and pour into each beaker.3. Measure the temperature of each water load. (Readings shall be taken to the first place of decimals.)4. Put each beaker in place on the cooking tray as illustrated in figure below. Start heating.5. After heating for 2 minutes, measure the water temperature in each beaker.6. Microwave heat distribution rate can be calculated as follows:

MinimumTemperature Rise

Heat Distribution = X 100(%)Maximum

Temperature RiseThe result should exceed 65%.

5-9 Microwave Heat Distribution - Heat Evenness

D

D

D/4

D/4D/4

D/4

Cooking Tray

Beaker

Samsung Electronics5-4


1) Pour 275±15cc of 20±5˚C(68±9˚F) water in a beakerwhich is graduated to 600cc, and place the beaker inthe center of the oven.

2) Start to operate the oven and measure the leakage byusing a microwave energy survey meter.

3) Set survey meter with dual ranges to 2,450MHz.4) When measuring the leakage, always use the 2 inch

spacer cone with the probe. Hold the probeperpendicular to the cabinet door. Place the spacercone of the probe on the door and/or cabinet doorseam and move along the seam, the door viewingwindow and the exhaust openings moving the probein a clockwise direction at a rate of 1 inch/sec. If the leakage testing of the cabinet door seam is taken neara corner of the door, keep the probe perpendicular to the areas making sure that the probe end at the baseof the cone does not get closer than 5cm to any metal. If it gets closer than 5cm, erroneous readings may result.

5) Measured leakage must be less than 4mW/cm2, after repair or adjustment.

UHR

LEISTUNGGRILL

ZEIT/GEWICHT

AUFTAUEN

GAR-AUTOMATIK

PLUS


MW+HEISSL

MW+GRILL

GRILL+HEISSL

LÖSCHEN START

CE124CF


2.FOLIENKARTOFFEL

3.PIZZA

4.POMMES FRITES


6.REIS/NUDELN

7.POPCORN


9.QUICHE/AUFLAUF

10.EINTOPF

11.SUPPE/SAUCE

12.REIS/NUDELN


14.SCHWEIN

15.GEFLÜGEL

16.GEFLÜGELSTÜCKE

17.FISCH

18.GEMÜSE(FRISCH)


MINUS

5-13 Leakage Measuring Procedure

5-10 Procedure for Measurement of Microwave Energy Leakage

5-12 Note on Measurement

5-11 Check for Microwave Leakage

5-13-1 Record keeping and notification after measurement1) After adjustment and repair of a radiarion preventing device, make a repair record for the measured

values, and keep the data.2) If the radiation leakage is more than 4 mW/cm2 after determining that all parts are in good condition,

functioning properly and the identical parts are replaced as listed in this manual notift that fact to ;

CENTRAL SERVICE CENTER

5-13-2 At least once a year have the microwave energy survey meter checked for accuracy by its manufacturer.

1. Remove the outer panel. 2. Pour 275±15cc of 20±5˚C(68±9˚F) water in a beaker

which is graduated to 600cc, and place the beaker inthe center of the oven.

3. Start the oven at the highest power level.4. Set survey meter dual ranges to 2,450MHz.5. Using the survey meter and spacer cone as described

above, measure arnear the opening of magnetron, thesurface of the air guide and the surface of the waveguide as shown in the following photo.( but avoid thehigh voltage components.) The neading should be lessthan 4mW/cm2.

1) Do not exceed the limited scale.2) The test probe must be held on the grip of the handle, otherwise a false reading may result when the

operator's hand is between the handle and the probe.3) When high leakage is suspected, do not move the probe horizontally along the oven surface; this may

cause damage to the probe.4) Follow the recommendation of the manufacturer of the microwave energy survey meter.

Maximum allowable leakage is 5mW/cm2.4mW/cm2 is used to allow for measurement and meter accuracy

WARNINGAVOID THE HIGH VOLTAGE COMPONENTS.

Spacer Cone

Survey Meter

Samsung Electronics

6. Troubleshooting

6-1

PRECAUTION

1. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE.2. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT.3. DISCHARGE THE HIGH VOLTAGE CAPACITOR.4. WHEN CHECKING THE CONTINUITY OF THE SWITCHES OR TRANSFORMER, DISCONNECT ONE LEAD WIRE FROM THESE

PARTS AND THEN CHECK CONTINUITY WITHOUT THE POWER SOURCE ON. TO DO OTHERWISE MAY RESULT IN A FALSEREADING OR DAMAGE TO YOUR METER.

5. DO NOT TOUCH ANY PART OF THE CIRCUIT OR THE CONTROL CIRCUIT BOARD, SINCE STATIC DISCHARGE MAY DAMAGE IT.ALWAYS TOUCH GROUND WHILE WORKING ON IT TO DISCHARGE ANY STATIC CHARGE BUILT UP.

6-1 Electrical Malfunction

SYMPTOM CAUSE CORRECTIONS

Oven is dead. 1. Open or loose lead wire harness Check fan motor when thermal cutout is defective.Fuse is OK. 2. Open thermal cutout (Magnetron)No display and no operation at all. 3. Open low voltage transformer Check Ass'y PCB when LVT is defective.

4. Defective Ass'y PCB

No display and no operation at all. 1. Shorted lead wire harness Check adjustment of primary, interlock monitor,Fuse is blown. 2. Defective primary latch switch (NOTE 1) power relay, door sensing switch.

3. Defective monitor switch (NOTE1)4. Shorted HVCapacitor5. Shorted HVTransformer (NOTE2)

NOTE 1: All of these switches must be replaced at the same time.(refer to adjustment instructions)Check continuity of power relay contacts and if it has continuity, replace power relay also.

NOTE 2: When HVTransformer is replaced, check diode and magnetron also.

Oven does not accept 1. Key input is not in-Sequence Refer to operation procedure.key input (Program) 2. Open or loose connection of membrane

key pad to Ass'y PCB3. Shorted or open membrane panel4. Defective Ass'y PCB Replace PCB main.

1. Off-alignment of latch switches Adjust door and latch switches.2. Open or loose connection of high voltage

circuit especially magnetron filamentcircuit

NOTE: Large contact resistance will bring lower magnetron filament voltage and

Timer starts countdown but no cause magnetron to lower output and/ormicrowave oscillation. intermittent oscillation.(No heat while oven lamp and 3. Defective high voltage components Check high voltage component according to fan motor turn on.) H.V.Transformer component test procedure and replace if it is

H.V.Capacitor defective.H.V.Diode,H.V.FuseMagnetron

4. Open or loose wiring of power relay5. Defective primary latch switch6. Defective power relay or Ass'y PCB Replace PCB main.


Troubleshooting

SYMPTOM CAUSE CORRECTIONS

Oven lamp and fan motor turn on 1. Misadjustment or loose wiring Adjust door and latch switches.of primary latch switch

2. Defective primary latch switch

Oven can program but timer 1. Open or loose wiring of secondary Adjust door and interlock switches.does not start. interlock switch

2. Off-alignment of primary interlock3. Defective secondary interlock S/W

Microwave output is low;. 1. Decrease in power source voltage. Consult electrician.Oven takes longer time to 2. Open or loose wiring of magnetroncook food. filament circuit. (Intermittent oscillation))

3. Aging of magnetron

Fan motor turns on when plugged in Loose wiring of door sensing switch Check wire of door sensing switch.

Oven does not operate and return Defective Ass'y PCB Replace PCB main.to the plugged in mode.

Loud buzzing noise can be heard. 1. Loose fan and fan motor Tighten screws of fan motor.2. Loose screws on H.V.Transformer Tighten screws of H.V.Transformer.3. Shorted H.V.Diode Replace H.V.Diode.

Turntable motor does not rotate. 1. Open or loose wiring of turntable motor. Check the wire of turntable motor2. Defective turntable motor. Replace turntable motor.

Oven stops operation during cooking 1. Open or loose wiring of primary Adjust door and latch switches.interlock switch

2. Operation of thermal cutout(Magnetron)

Sparks 1. Metallic ware or cooking dishes Inform the customer.touching on the oven wall.

2. Ceramic ware trimmed with gold or Do not use any type of cookware withsilver powder also causes sparks. metallic trimming.

Uneven cooking Uneven intensity of microwave due to Wrap thinner parts of the food with its characteristics. aluminum foil.

Use plastic wrap or cover with a lid.Stir once or twice while cookingfoods such as soup, cocoa, or milk.

Noise from the turntable motor Noise may result from the motor. Replace turntable motor.when it starts to operate.

6-1 Electrical Malfunction(continued)

Samsung Electronics

7. Exploded Views and Parts List

7-1 Exploded Views

7-1

76

75

48

61

62

46

64

6566

67

73

6

74

4

2

7

1

10

5

3

7742

72

78

55

63

51

52

82

47

6968

53

54

49

50

59

56

60

43

89

57

3840

44

45

36

41

39

37

3334

30

29

28

32

31

35

22

25

26

27

23

86

20

17

15

19

1421

18

13

16

12

70

87

88

83

84

85

58

24

71

79

80

81

7-2 Main Parts List


Exploded Views and Parts List

Ref. No. Parts No. Description Specification Q'ty Remarks

1 DE92-90315A ASSY-DAMPER COVER RE-1280 12 DE61-30100A SUPPORTER-BACK SECC,T0.6 13 DE92-90053A ASSY-COVER AIR RE-1200/1280/1270 14 DE39-40453E WIRE HARNESS-B 230V,RE-1280(SAW),AMFO 15 DE62-90016B ADIABATIC-L EGF-E3019-PBS,T10,W180,L180,AL 16 DE71-60316A COVER-ADIABATIC-L SBHG1-M,T0.5 1 COVE/L7 DE92-90179A ASSY-BACK PANEL RE-1280 18 DE65-20022A BUSHING CORD IC002 19 DE39-20075G ASSY POWER CORD UD13A1,230V15A,L1500,BLK,CE102 1

10 DE39-40229E WIRE HARNESS-A 230V,RE-1280(SAW),AMFO 112 DE31-10020A MOTOR-FAN AMM90-004ATEB 113 2501-000234 C-OIL SCH-2121134B1,1.13F,2100VAC,54X35 114 DE61-50266A BRACKET-HVC SECC,T0.6 115 DE59-40001A DIODE-H.V HVR-1X-32B-12 116 DE39-30102A WIRE LEAD-B L540,2GA2 117 DE91-70061A ASSY-H.V.FUSE THV060T-0800-H,5KV/0/8A WH 118 DE61-30099A SUPPORTER-MGT SECC,T0.8 119 DE27-10020A COIL-MC CHOKE TC,101 120 OM75PH(10)ESS ASSY-MAGNETRON OM75PH(10)ESSS 121 DE47-20101A THERMOSTAT PW2N(160/60) 1 MGT22 DE66-90028A LEVER-DAMPER POM-KEP,44G 123 DE72-20014A CAM POM(KEP,F20-02),RE-909CG 124 DE34-20026A SWITCH-MICRO VP331A-OD(PT2 125 DE70-90016A SHEET-INSK K POLYESTER,T0.5,W45,L24 126 DE61-50231A BRACKET-DAMPER SECC,T0.8 127 DE31-10052A MOTOR-SYNCHRONOUS M2LB49ZR02,DAMPER-MOTOR 128 DE60-60026A PIN-DAMPER MSWR3 129 DE67-60037A COUPLER-BARBECUE AL 130 DE31-10057A MOTOR-SYNCHRONOUS MULJ24ZR03,SPIT-MOTOR 131 DE72-40034A DAMPER-SILICON SILICONE 132 DE72-40037A DAMPER-PLATE SECC,T0.6 133 DE62-90015B ADIABATIC-R EGF-E3019-PBS,T15,W346,L282,AL 135 DE71-60216A COVER-DAMPER NYLON#66-2411GF,143.7G 134 DE71-60230D COVER-ADIABATIC-R SBHG1-M,T0.5 135 DE71-60216A COVER-DAMPER NYLON#66-2411GF,143.7G 136 DE66-40027A BODY-LATCH NULON#662411GF6,HB,NTR 137 3405-000175 SWITCH-MICRO 250V,15A,200gf,SPST-NO 138 DE61-30127A SUPPORTER-PCB DANC-6N 139 3405-000178 SWITCH-MICRO 250V,15A,200gf,SPST-NO 240 DE61-30129A SUPPORTER-PCB DASS-T9N 441 DE66-90062A LEVER-DOOR NYLON#66,2411GF6,HB,NTR 142 DE91-70100A ASSY-RESISTOR RE-1280(SAW),10W,30-J 143 DE26-10033A TRANS-H.V Y247STC,230V,50HZ,AC2260/3.3V 144 DE61-50232A BRACKET-DOOR LEVER SECC,T1.5 145 DE60-60026A PIN-DAMPER MSWR3 146 DE72-80023B SHAFT-BARBECUE RE-909CG 147 DE39-40117A WIRE HARNESS-C RE-909CG 148 DE92-90247A ASSY-COUPLER RE-1270/1280,EUROPE 149 DE61-50236A BRACKET-COVER MOTOR SECC,T0.8,RE-909CG 150 DE31-10039A MOTOR-SYNCHRONOUS MVLB51ZR11,220/240V50H 151 DE47-70016E HEATER-GRILL 230V,1300W,39OHM,D7.0,RE-1280, 152 DE61-30140A SUPPORTER-HEATER ALUMINA,10G,RE-650 153 DE62-90014B ADIABATIC-L EGF-E3019-PBS,T15,W351,L136,AL 154 DE71-60229D COVER-ADIABATIC-L SBHG1-M,T0.5 155 DE70-40073A PLATE-CEILING MICA-SHEET,T0.5 156 DE80-10049A BASE-PLATE SBHG1-R,T1.0 157 DE91-40091A ASSY-NOISE FILTER RE-1200,250V,15A,1200 158 DE26-20084A TRANS-L.V RE-1280STC,230V,50HZ,AC16/3V,R 159 DE61-80065A HINGE-LOWER SBC1,T3.0,DARCON 160 DE61-40029A FOOT DASF-330,RE-909CG 4


7-2 Main Parts List


61 DE92-90019B ASSY-RACK WIRE CE124CF,HIGH,MAGENTA 1

62 DE92-90019S ASSY-WIRE RACK CE124CF,LOW 1

63 DE61-90094A HOLDER-BARBECUE PTFE,9G 1

64 DE32-10013A SENSOR-THERMISTOR PT-312-K2 1

65 4713-000168 LAMP-INCANDESCENT 230V,-,25W,ORG 1

66 DE47-40021A SOCKET-LAMP E/14(22.225) 1

67 DE61-50234A BRACKET-LAMP SECC,T0.8 1

68 DE71-60267A COVER-LAMP STS304,T0.4 1

69 DE67-40066A GLASS-PLATE TEMP-GLASS,T3.2 1

70 DE61-50282E BRACKET-HINGE U SBHG1-A,T1.2 1

71 DE61-70060A SPRING-PLATE SK-5,T0.5 1

72 DE62-90028C ADIABATIC-UPPER T6,W399,L353.8,CERAMIC,WOOL 1 C/UPP

73 DE47-20044A THERMOSTAT PW-2N,150/60,BKT23.8MM 1 GRILL

74 DE92-90100B ASSY-GUIDE AIR RE-1280/1270 1

75 DE92-90072A ASSY-BASE ROLLER RE-909CG 1

76 DE74-20045A TRAY-CERAMIC RE-909CG 1

77 DE93-90038A ASSY-B/RESISTOR FX175Z-D 1

78 DE61-50238A BRACKET-PLATE SECC.T0.6 1

79 DE64-20045A HANDLE-BARBECUE TEMPERED,SPRAY,BLK 2

80 DE74-20107A TRAY-BROILER AL,T0.8,345,345,PI345,ENAMEL,S 1

81 DE92-90009A ASSY-SPIT RACK CE124CF 1

82 DE61-30141A SUPPORTER-HEATER(B) ALUMINA,5G,RE-650 1

83 DE63-20019A GASKET-HEATER BRASS-WIRE 1

84 DE93-20013C ASSY BODY LATCH RE-1280(SAW) 1

85 DE60-60017A PIN-WIRE MSWR3,PI1.0 1

86 DE61-50165A BRACKET-HEATER MICA-SHEET,T0.5,W35,L91.5 1

87 3601-000438 FUSE-FERRULE 250V,15A,SB,CERAMIC,6.4X31.8MM 1

88 DE73-90027A FERRITE-CORE NI-ZN,T13.8,W21.0,L28.0,BNF-14 1

: Option Parts : Warning :Electrostatically Sensitive Devices




7-3 Exploded View & Parts List - Door Parts


1 DE64-40045A DOOR-A PC-LEXAN141,RP-WH-01-K,310G,RE 12 DE67-20029E SCREEN-DOOR(B) TEMP,GLASS,T3.2XW313XL435,VITA 13 DE92-50037A ASSY DOOR-E SILICON,BONDING 14 DE64-40103A DOOR-C PBT-1500G,158G 15 DE64-40124A DOOR-KEY NYLON#66-2411GF,5.1G 26 DE92-90138A ASSY-BRACKET SLIDER RE-909CG 17 DE61-70057B SPRING-KEY HSWR,PI1.2,D5.8,L47 18 DE92-90052A ASSY-HINGE-U SBC1,T2.0 19 DE73-90018A FERRITE DB-867CPE,T4.1,W7.0,L1310 1

10 DE60-60021A PIN-DOOR MSWR,ZPC3 2

1

2

3

4

5

6

7

9

10

8

7-4 Exploded View & Parts List - Control Parts


1 DE66-20025A BUTTON-PUSH PC-LEXAN#141,RP-WH-01-K,19G,RE 12 DE72-70051M CONTROL-PANEL PC(LEXAN#141),RP-WH-01-K,230G 13 DE67-40027H WINDOW-DISPLAY ACRYL,SMOG,40G,AMFO 14 DE66-20041A BUTTON-CANCEL PC-LEXAN#141,RP-WH-01-K,6G,RE 25 DE66-20026A BUTTON-SELECT-L PC-LEXAN#141,RP-WH-01-K,16G 16 DE66-20042A BUTTON-SELECT-R PC-LEXAN#141,RP-WH-01-K,10G 17 DE66-20080A BUTTON-CLOCK PC-LEXAN#141,RP-WH-01-K,1G,RE 18 DE66-20024A BUTTON-MORE PC-LEXAN#141,RP-WH-01-K,7G,RE 19 DE61-50072A BRACKET-PANEL SECC,T0.8,W107,L286.35 1

12 DE39-30091A WIRE LEAD-PCB(B) L60,RE-1280(SAW),AMFO 113 DE64-10038C KNOB-VOLUME PC(LEXAN#141),WHT,5G,CIRCLE,PR 114 DE61-70076A SPRING-BUTTON HSWR,PI0.6 215 DE34-20030A SWITCH-VOLUME 4M17736 116 DE93-30066M ASSY CONTROL-BOX CE124CF(SAW),AMFO 1

131

14 2

415

3

5

9

12

6

78

11




7-5 Exploded View & Parts List - Casing Parts


1 DE31-90020A BLADE-FAN ALSTAR,T0.6,W250,L250 12 DE47-70028B HEATER-CONVECTION D8,230V6.1A,1400W,RE-1280 13 DE72-30014A BUSH-GEAR MOTOR SWRM3,ID5,OD7,ZPC3 14 DE92-90212C ASSY-HEATER COVER RE-1280,NEW,SYSTEM,VI 15 DE61-50192A BRACKET-HEATER-B STS430,T0.8,W28.5,L65.4,RE-128 26 DE60-30016B NUT-FLANGE M4,MSWR10,FEFN 3 BL-FAN/HEATER7 DE31-90019A BLADE-FAN SECC,T0.6 18 DE91-50031A ASSY-CONV.MOTOR AMM90-004AUEA,230V0.33A 19 DE47-20044A THERMOSTAT PW-2N,150/60,BKT23.8MM 1

10 DE60-40026A WASHER-PLAIN ID5.5,OD12,T1.0,SBC1 111 DE62-10014A INSULATION-TCO T2.0,W34,L26,YEL 112 DE92-90079G ASSY-CASING RE-1270/1280,230V,NEW,SYSTEM,V 1

10 13

2

45

6

7

8

9

11


7-6 Parts List - Standard Parts

Parts No. Description Specification Q'ty Remarks

DE60-10012A SCREW-TAP TITE TH,+,3,M4,L10,SWR10,ZPC2,TOOTH 1 H.V.DDE60-10012A SCREW-TAP TITE TH,+,3,M4,L10,SWR10,ZPC2,TOOTH 1 N/FILTDE60-10013A SCREW-ASSY TAP TH,2S,4,L12,MSWR3,ZPC3,FIBER 6 BASE-PDE60-10016A SCREW-ASSY MACHINE TH,4,L10,STS43 1 SENSORDE60-10032A SCREW-TH TH,+,M4,L8,STS304 2 BAR-HLDE60-10045A SCREW-TAP PH PH,M3,L6,FEFZY 2 TCO-MGDE60-10052A SCREW-TAP PH PH,M4,L8,FEFZY 1 B/U-HIDE60-10052A SCREW-TAP PH PH,M4,L8,FEFZY 1 FR-PANDE60-10052A SCREW-TAP PH PH,M4,L8,FEFZY 2 TCO-GRDE60-10053A SCREW-TAP PH PH,M4,L10,FEFZY 2 BAR-MODE60-10061A SCREW-TAP TH TH,M4,L8,STS 2 G/LAMPDE60-10061A SCREW-TAP TH TH,M4,L8,STS 2 PL-CEIDE60-10063A SCREW-TAP TH TH,M4,L12,FEFN 1 HI-LOWDE60-10063A SCREW-TAP TH TH,M4,L12,FEFN 4 OUT-PNDE60-10066A SCREW-TAP TH TH,M4,L8,FEFZY,2-SLOT 4 B/GE-MDE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 1 A-C-AIDE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 AIR-GUDE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 B/HTRDE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 B/LAMPDE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 C/AD-LDE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 C/AD-RDE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 8 CASINGDE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 4 DAMPERDE60-10080A SCREW-WASHER M5,L12,2S 4 HVTDE60-10082H SCREW-A 2S-4X12,TOOTHED 1 A-B-REDE60-10082H SCREW-A 2S-4X12,TOOTHED 1 A-RESTDE60-10082H SCREW-A 2S-4X12,TOOTHED 2 B-PLTEDE60-10082H SCREW-A 2S-4X12,TOOTHED 1 B/HVCDE60-10082H SCREW-A 2S-4X12,TOOTHED 2 B/U-HIDE60-10082H SCREW-A 2S-4X12,TOOTHED 11 BACK-PDE60-10082H SCREW-A 2S-4X12,TOOTHED 2 BD-LATDE60-10082H SCREW-A 2S-4X12,TOOTHED 3 CON-BXDE60-10082H SCREW-A 2S-4X12,TOOTHED 1 MO-FANDE60-10082H SCREW-A 2S-4X12,TOOTHED 5 OUT-PNDE60-10082H SCREW-A 2S-4X12,TOOTHED 2 SUP-MGDE60-10082H SCREW-A 2S-4X12,TOOTHED 1 W-H-ADE60-20014A BOLT-FLANGE M5,L10,MSWR3,FEFZY 2 LOW-HIDE60-20014A BOLT-FLANGE M5,L10,MSWR3,FEFZY 2 UPP-HIDE60-30015A NUT-FLANGE M5,P0.8,MSWR10,FEFZY 4 MGTDE60-30016A NUT-FLANGE M4,MSWR10 2 BR-HANDE60-30016A NUT-FLANGE M4,MSWR10 2 GRIL-HDE60-30016A NUT-FLANGE M4,MSWR10 1 SENSORDE60-10045A SCREW-TAP PH PH,M3,L6,FEFZY 2 -DE60-10066A SCREW-TAP TH TH,M4,L8,FEFZY,2-SLOT 3 -DE60-10122A SCREW-TAP TH TAP,TH,2-4X8,FE,FN 2 -DE60-10047A SCREW-TAP PH PH,M3,L16,FEFZY 2 -DE60-10052A SCREW-TAP PH PH,M4,L8,FEFZY 2 -DE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 3 -DE60-10012A SCREW-TAP TITE TH,+,3,M4,L10,SWR10,ZPC2,TOOTH 1 P/EARTDE60-10069A SCREW-TAP TH TH,M4,L10,FRFZY 2 -DE60-10072A SCREW-TAP TH TH,M4,L16,FEFZY,2-SLOT 4 FOOTDE60-10082H SCREW-A 2S-4X12,TOOTHED 2 COV/BDE60-10088A SCREW-TAP PH PH,M3,L8,FEFZY,PLAIN 14 -



8. P.C.B Diagrams

8-1 P.C.B Diagrams


MICOM

V.F.DISPLAYSVM-4MS-13

100K-20V

F1F2

R29 3.9K-J

100K100K

KA2657

12V

12V

5V

12V(A)

D081N

4001M

AINRELAY

F1F2

R01 470-J

R02 470-J

ZD01 1W 5.1V

-20V

D01 1N4001

C02470uF

D02 1N4001

-20V

C05 0.1uF

C060.1uF

D04 1N4001

5V

G3 37

G2 36

G1 35

G0 34

B0 45

B1 46

B2 47

B3 48

B4 49

B5 50

B6 51

B7 52

H7 32

H6 31

H5 30

H4 29

H3 28

H2 27

H1 26

H0 25

A4 8

A5 9

A6 10

A7 11

15 INT

64 VCC

3 VREF

12 RESET

2 VASS

1 VSS

63 OSC IN

62 OSC OUT

41 G7

14 E1

23 C6

24 C7

16 E3

13 E0

5 A1

4 A0

6 A27 A3

17 C0

18 C1

19 C2

20 C3

21 C4

22 C5

IC 1C18 0.1uF

+

C01470uF

IC2

1234568

1615141312119

+

+

C070.1uF

+

R08 10K-J Q04R1005

R03 470-JZD020.5W

13V

D031N

4148

C031000uF

Q01D882Y

12V

VTG-REG7805

C04100uF

5VZD030.5W

3.9V

R04 1K-J

R05 1K-J

R065.1K-J

Q02C815

Q03C815

R0710K-J

+C1110uF

12V

12V(A) Q09A539

12V12V

BUZZERQ07 R2005

R12 10K-JR11 3.9K-J

Q08R1005

D051N

4001

+

D06 1N4001

R102K-J

Q06 R1005

R09 1K-JQ05

R1005

C09 27pF

C08 27pF

D071N

4001Q10C815

POWER

RELAY

R13 3.9K-J

R1410K-J

12V(A)

R1610K-J

R153.9K-J

Q11C815

5V

+C151uF

5V ENCODER

SWITCH

R25 1K-J

R26 1K-J

R27 10K-J

R28 10K-J

DOOR S/W

CON03

THERMISTOR

C120.1uF

R23 2K-J

R38 1M-J

R37 1M-J

R24 1K-FR22 5K-F

Q12 A539

R21 10K-JR18 3.9K-J

R17 3.9K-J

R19 100K-F

R20 3.9K-J

INRUSH RELAY

GRILL RELAY

FAN RELAY

DAMPER RELAY

CONV.M

RELAY

CONV.H RELAY

335354555657585960

TIME

COOK COM

BI 2(M

+C) M

IN+

MIN

-

STARTOPTION

OPTION

-20V

G1G2G3G4ponmlkjihgfedcba

R30 3.9K-J

R31 3.9K-J

R32 3.9K-J

87 109GRILL

CONVEC-

TION

COMBI1

(M+G)

AUTOCOOK

AUTODEFROST

COMBI 3

(G+C)

POWER

LEVEL

CLOCK

CANCEL

OPTION OPTION

OPTION OPTION

OPTION OPTION

1N4148

D101N

4148D11

1N4148

D121N

4148D13

1N4148

D141N

4148D15

12

34

56

R3347K-J

R3447K-J

R3547K-J

R3647K-J

P.C.B.-SUB

C14332

C15332

C16332

C17332

MICOM

OPTION

CON01

1

2

3

6

4

5

1 tone

2 tones

4 tones

56

32

1

(B)(A)

(A)

Waveform

of (A)

0V-5V DC

Waveform

of (B)0V

-5V DC

0V

Waveform

of (A)VCC (-5V )

Waveform

of (B)VCC (-5V)

ZD4Turn off

Power Off

Power On

1. Beep tone

2. Stage change and half tim

e in Auto Weight

Defrost tone

3. Error and Finish Tone

0.1sec

0.6sec0.4sec

0.6sec0.4sec

0V

-5VPin 50VV1V1Pin 4

-3VT

CH1gnd

CH2 gnd

CH1 5V A 200ms 2.21 V VERT

CH2 5V 5V

CH1

CH2

CH2 MAX - 5.16V

CH1 5V A 200ms 2.21 V VERT

CH2 2V -354.00ms

CH1gnd

CH2 gnd

CH2 MAX - 5.16V

0-2-4

-5V-6

65V420

4

(B)

C10 10uF

No. Parts No. Description Specification Q'ty Remarks

P 1 0502-000303 TR-POWER KSD882,NPN,1W,TO-126,TP,160-32 1 Q01P 2 3406-001031 SWITCH-ROTARY 10V,1mA,DP24T,18.3mm 1 ECD1P 3 3501-000265 RELAY-POWER 12V,-,16A,-,15mS,15mS 2 CONV-H,CONV-MP 3 3501-000265 RELAY-POWER 12V,-,16A,-,15mS,15mS 2 GRILL,INRUSHP 3 3501-000265 RELAY-POWER 12V,-,16A,-,15mS,15mS 2 MAIN,POWERP 4 3501-000334 RELAY-REED 12V,1250VA,10A,-,10mS,5mS 1 RELAYP 5 3711-000315 CONNECTOR-HEADER 1WALL,7P,1R,3.96mm,STRAIGHT,SN 1 CON04P 6 3711-000607 CONNECTOR-HEADER BOX,11P,1R,2.50mm,ANGLE,SN 1 CON06P 7 3711-000612 CONNECTOR-HEADER BOX,11P,1R,2.5mm,STRAIGHT,SN 1 CON02P 8 3711-001343 CONNECTOR-HEADER NOWALL,1P,1R,3.4mm,STRAIGHT,AG 1 GNDP 9 DE07-10052A V.F.DISPLAY SVM-4MS13S,MWO,RE-1280 1 VFDP10 DE09-30158A IC-MCU TMS73C91-C69416,DIP,RE-1280 1 MICOMP11 DE13-20016A IC-VOLT REGU KA7805A,TO-220AB,1A,0/125C 1 IC04P12 DE13-20017A IC-DRIVE KID65003AP,DIP,16P,STICK,TR-AR 1 IC02P13 DE30-20016A BUZZER CBE2220BA,STICK 1 BUZZERP14 DE61-90034D HOLDER-DIGITRON PP(JI350),BLK 1 -P15 0401-001002 DIODE-SWITCHING 1N4148M,100V,200mA,DO-34,TP 7 D03,D09,D10,D11~D14P16 0402-001103 DIODE-RECTIFIER 1T4,400V,1A,TS-1,TP 7 D01,D02,D04,D05~D08P17 0403-000150 DIODE-ZENER 1N4743A,13V,5%,1W,DO-41,TP 1 ZD02P18 0403-000525 DIODE-ZENER 1N4733A,5.1V,5%,1W,DO-41,TP 1 ZD01P19 0501-000283 TR-SMALL SIGNAL KSA539,PNP,400mW,TO-92,TP,120- 2 Q09,Q10P20 0501-000388 TR-SMALL SIGNAL KSC815,NPN,400mW,TO-92,BK,120- 2 Q04,Q05P21 0504-001045 TR-DIGITAL KRC119M,NPN,400MW,4.7K/10K,TO-92M,TP 4 Q02,Q03,Q06,Q08P22 0504-001046 TR-DIGITAL KRA119M,PNP,400MW,4.7K/10K,TO-92M,TP 1 Q07P23 2001-000042 R-CARBON 1KOHM,5%,1/4W,AA,TP,2.4X6.4MM 5 R04,R05,R09,R27,R28P24 2001-000062 R-CARBON 470OHM,5%,1/4W,AA,TP,2.4X6.4MM 3 R01,R02,R03P25 2001-000065 R-CARBON 10KOHM,5%,1/4W,AA,TP,2.4X6.4MM 5 R06,R07,R08,R12,R14P25 2001-000065 R-CARBON 10KOHM,5%,1/4W,AA,TP,2.4X6.4MM 2 R16,R21P26 2001-000076 R-CARBON 47KOHM,5%,1/4W,AA,TP,2.4X6.4MM 4 R33,R34,R35,R36P27 2001-000432 R-CARBON 1MOHM,5%,1/4W,AA,TP,2.4X6.4MM 2 R24,R25P28 2001-000575 R-CARBON 2KOHM,5%,1/4W,AA,TP,2.4X6.4MM 2 R10,R23P29 2001-000611 R-CARBON 3.9KOHM,5%,1/4W,AA,TP,2.4X6.4MM 5 R11,R13,R15,R17,R18P29 2001-000611 R-CARBON 3.9KOHM,5%,1/4W,AA,TP,2.4X6.4MM 5 R20,R29,R30,R31,R32P30 2004-000193 R-METAL 100Kohm,1%,1/4W,AA,TP,2.4x6.4m 1 R19P31 2004-000432 R-METAL 1Kohm,1%,1/4W,AA,TP,2.4x6.4mm 1 R26P32 2004-001118 R-METAL 5Kohm,1%,1/4W,AA,TP,2.4x6.4mm 1 R22P33 2201-000442 C-CERAMIC,DISC 3.3nF,10%,50V,X7R,-,-,08x5.0 4 C14,C15,C16,C17P34 2201-000817 C-CERAMIC,DISC 22pF,79.8,50V,Y5V,TP,4x4,5 2 C08,C09P35 2202-000780 C-CERAMIC,MLC-AXIAL 100nF,+80-20%,50V,Y5V,TP,3.5x1 5 C05,C06,C07,C12,C19P36 2401-000030 C-AL 22uF,20%,25V,GP,TP,5x11,5 1 C18P37 2401-000159 C-AL 1000uF,20%,25V,GP,-,13x25x7.5m 1 C03P38 2401-000244 C-AL 100uF,20%,10V,GP,TP,6.3x7,5 1 C04P39 2401-000466 C-AL 10uF,20%,35V,GP,TP,5x7,5 2 C10,C11P40 2401-000598 C-AL 1uF,20%,50V,GP,TP,4x7,5 1 C13P41 2401-001415 C-AL 470uF,20%,35V,GP,TP,10x20,5 2 C01,C02P42 2802-000143 RESONATOR-CERAMIC 4.19MHz,0.5%,TP,10.0x5.0x7.5mm 1 XTALP43 3404-001022 SWITCH-TACT 15V,20mA,130°æ40gf,6x6x5mm,SPS 14 SW01~SW14P44 3711-000881 CONNECTOR-HEADER BOX,3P,1R,2.5mm,STRAIGHT,SN 2 CON05,CON07P45 3711-000940 CONNECTOR-HEADER BOX,4P,1R,2.5mm,STRAIGHT,SN 1 CON03P46 3711-000999 CONNECTOR-HEADER BOX,5P,1R,2.5mm,STRAIGHT,SN 1 CON01P47 DE13-20009A IC KA7533,DIP 1 IC03P48 DE39-40113A WIRE HARNESS-F 110/220V,60HZ,MX200TCC,130MMX3 1 -P49 DE39-60001A WIRE-SO COPPER PI0.6,SN,T,52MM,TAPING_WIRE 35 J01~J35P50 DE41-10108A P.C.B-MAIN-SUB FR-1,T1.6,W197,L327,RE-1280 1 PCBP51 DE92-90093D ASSY-HEAT SINK JVM-190K,A-TYPE 1 -

8-2 P.C.B Parts List

P.C.B Diagrams


9. Schematic Diagram & Wiring Diagram

9-1 Schematic Diagram

* Switches and relays status according to each condition

9-1

L

N

0V 50HzGLE

ASE

(BLU)

(BLK)

(BLU)

(ORG)

(ORG) (BLU)

(ORG)

(WHT)

(RED)

(BLU)

(ORG)

(BLK)

MONITORFUSE

LVTFANMOTORRELAY

(RED)

FANMOTOR

FM DMDAMPERMOTOR

(RED)

(BLU,BLK)

GRILLT.C.O.

(RED)

GRILLHEATER

(BLU,RED)

GRILLRELAY

L

(BRN)

LAMP

(BLK)(ORG)

SURGERESISTOR (10W 30ohm)

TM0.15uFCAP.

MONITORSWITCH

(ORG)

MAIN RELAY(BLK)

CONNECTOR "B"

(WHT)

(BLK)

CONV.MOTORRELAY

CONV.HEATER RELAY

(BRN, YEL)(BRN)

SM CM

SPITMOTOR

(BLU)CONV.MOTOR

T/TMOTOR

CONV.HEATER

(RED)

CONV.T.C.O.

(GRY,BLU)

(WHT,BLU)(RED)

INRUSHRELAY

RESISTOR(10W 15ohm)

(YEL)(YEL) (ORG)(WHT)

H.V.TRANS

H.V.FUSE(0.8A)

(RED)(RED)

H.V.C.(1.13uF)

H.V.D

F

MAGNETRON

CONDITION OF OVENDOOR OPENEDPLUG IN

CONNECTOR "A"

CONNECTOR "C"

PRIMARY SWITCH

DAMPER RY.

(GRY)(BLU)

(NC)

(NC)

(COM)(NO)

(WHT)

DAMPERSWITCH

(NO)

0.15uFCAP.

(Y/G)

1.3mH

FUSE15A

NOISE FILTER

C32200pF

C10.1uF

500KOHM

C22200pF

(BLK)

MGTT.C.O.S/W

SEC. S/W RY.

F

(RED)

Samsung Electronics

Condition DOOR DOOR MICRO- GRILL CONVEC MWO+ MWO+ GRILL+ITEM OPEN CLOSE WAVE -TION GRILL CONV. CONV.

PRI.S/W OPEN CLOSE CLOSE CLOSE CLOSE CLOSE CLOSE CLOSE

MON.S/W CLOSE OPEN OPEN OPEN OPEN OPEN OPEN OPEN

MAIN RY ON OFF ON ON ON ON ON ON

SEC.S/W RY OFF OFF ON OFF OFF ON ON OFF

GRILL RY OFF OFF OFF ON OFF ON OFF ON

CONV. HEA.RY OFF OFF OFF OFF ON OFF ON ON

FAN.MTR.RY OFF OFF ON ON ON ON ON ON

DAMPER RY OFF OFF OFF ON ON ON ON ON

CONV.MTR.RY OFF OFF OFF ON ON ON ON ON

9-2 Wiring Diagram


OVEN THERMISTOR

DOOR S/W

(BUL

)

(ORG

)

(WHT

)

(BLK

)

(YEL

)

(BRN

)

GRIL

L RY

.

INRU

SH R

Y..

SEC.

S/W

RY.

MAI

N R

Y.

CON

V. H

EA.R

Y.

CON

. MOT

OR R

Y.

CON 4

CON 1

(GRY)(BLU)(ORG)(RED)

(YEL)

(RED)

DAMPERMOTORRELAYFAN MOTORRELAY

L.V.TRANSSECONDARY

VOLTAGEORG BLKGRYORG

SYMBOL COLOR Y/G YELLOW//GREEN BLK BLACK

WHT WHITE BLU BLUE BRN BROWN GRY GRAY YEL YELLOW ORG ORANGE RED RED

: GROUND

: PARTS LINE

: PCB PATTERN LINE

(BLU,RED) :W-H-A=BLU , W-H-B=RED

ORGREDREDBLU

PRIMARY SWITCH DOOR SENSING SWITCH MONITOR SWITCH

ORG ORGORG

BRNRED

RED

RED

WHT

RED

FA F

HIGH VOLTAGETRANSFORMER

H.V.FUSE

HIGH VOLTAGE CAPACITOR

HIGH VOLTAGE DIODE

TO CHASSIS

MAGNETRON

SYMBOL COLOR ORG ORANGE WHT WHITE BLK BLACK RED RED YEL YELLOW

Schematic Diagram & Wiring Diagram

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